code: def step_split(self):
      import os
  
      if current.retry_count == 2:
          self.this_is_split = True
      else:
          raise TestRetry()
  
file_path: metaflow/test/core/tests/tag_catch.py
imports: from metaflow_test import MetaflowTest, ExpectationFailed, steps, tag
  from metaflow import current
label_desc: Use image node_id 2 for calling the TagCatchTest obj's underlying member method code with example usage: obj.step_split() without return types